Growatt GroBoost Quick Installation Manual page 7

The following figure 1-5 is the wiring interface of GroBoost, and its functions and
definitions are detailed in Table 1-3.
NO Description
1 Relay A input port
2 Relay B output port
3 Relay C output port
4 TP1000—L1
5 TP1000—L2
6 TP1000—L3
7 12V DC-DC
8 12V DC-DC
9 GND (12V DC)
10 RS485+ (D+)
11 EARTH
7 L3
8 Home
Table 1-2
Figure 1-5
NO
13
14
15
16
17
18
19
20
21
22
23
5
Phase L3 control button
RF pairing / Reset /
Factory Reset
Description
Input PE earth wire
Input N zero line
Enter L1 FireWire
Enter L2 FireWire
Enter L3 FireWire
Output PE earth wire
Output N zero line
Output L3 FireWire
Output PE earth wire
Output N zero line
Output L2 live wire